Amazon SAP-C01 Practice Test - Questions Answers, Page 71

You can initialize Amazon Mobile Analytics using AWS IAM accounts. AWS recommend using Amazon Cognito for security best practices.

Reference: http://aws.amazon.com/mobileanalytics/faqs/

Reference:

https://docs.aws.amazon.com/config/latest/developerguide/evaluate-config_develop-rules_getting-started.html

In AWS EC2, while configuring a security group, the user needs to specify the IP address in CIDR notation. The CIDR IP range 10.20.30.40/32 says it is for a single IP 10.20.30.40. If the user specifies the IP as 10.20.30.40 only, the security group will not accept and ask for it in a CIDR format.

Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-network-security.html

Reference: https://aws.amazon.com/dynamodb/faqs/

Granting Cross-account Permission to objects It Does Not Own

In this example scenario, you own a bucket and you have enabled other AWS accounts to upload objects. That is, your bucket can have objects that other AWS accounts own. Now, suppose as a bucket owner, you need to grant cross-account permission on objects, regardless of who the owner is, to a user in another account. For example, that user could be a billing application that needs to access object metadata. There are two core issues:

The bucket owner has no permissions on those objects created by other AWS accounts. So for the bucket owner to grant permissions on objects it does not own, the object owner, the AWS account that created the objects, must first grant permission to the bucket owner. The bucket owner can then delegate those permissions.

Bucket owner account can delegate permissions to users in its own account but it cannot delegate permissions to other AWS accounts, because cross-account delegation is not supported. In this scenario, the bucket owner can create an AWS Identity and Access Management (IAM) role with permission to access objects, and grant another AWS account permission to assume the role temporarily enabling it to access objects in the bucket.

Background: Cross-Account Permissions and Using IAM Roles

IAM roles enable several scenarios to delegate access to your resources, and cross-account access is one of the key scenarios. In this example, the bucket owner, Account A, uses an IAM role to temporarily delegate object access crossaccount to users in another AWS account, Account

C. Each IAM role you create has two policies attached to it: A trust policy identifying another AWS account that can assume the role. An access policy defining what permissions—for example, s3:GetObject—are allowed when someone assumes the role. For a list of permissions you can specify in a policy, see Specifying Permissions in a Policy. The AWS account identified in the trust policy then grants its user permission to assume the role. The user can then do the following to access objects: Assume the role and, in response, get temporary security credentials. Using the temporary security credentials, access the objects in the bucket.

For more information about IAM roles, go to Roles (Delegation and Federation) in IAM User Guide. The following is a summary of the walkthrough steps:

Account A administrator user attaches a bucket policy granting Account B conditional permission to upload objects. Account A administrator creates an IAM role, establishing trust with Account C, so users in that account can access Account

A. The access policy attached to the role limits what user in Account C can do when the user accesses Account A. Account B administrator uploads an object to the bucket owned by Account A, granting full-control permission to the bucket owner. Account C administrator creates a user and attaches a user policy that allows the user to assume the role. User in Account C first assumes the role, which returns the user temporary security credentials. Using those temporary credentials, the user then accesses objects in the bucket. For this example, you need three accounts. The following table shows how we refer to these accounts and the administrator users in these accounts. Per IAM guidelines (see About Using an Administrator User to Create Resources and Grant Permissions) we do not use the account root credentials in this walkthrough. Instead, you create an administrator user in each account and use those credentials in creating resources and granting them permissions

Import/Export supports importing and exporting data into and out of Amazon S3 buckets. For significant data sets, AWS Import/Export is often faster than Internet transfer and more cost effective than upgrading your connectivity.

Reference: https://stackshare.io/stackups/aws-direct-connect-vs-aws-import-export

Reference: https://docs.aws.amazon.com/systems-manager/latest/userguide/sysman-install-managed-linux.html